Question about Yamaha Emx88s Powered PA Mixer System

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Yamaha 860 st

When i crank it up the speakers bang and it sounds like the speakers want to blow up.Its fine at low volume . but as soon as i crank it up it happens. any help could be appriciated. acousticjamdwm@yahoo.com my name is DOUG

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  • accessrm Apr 27, 2009

    same problem as described below. Is that a defect in this particular model. To avoid this in the future, what wouild you suggest may have cuased this?

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  • Master
  • 899 Answers

This could be the pre amp transistor or the power amp , it will need to be tested and other components tested also to make sure they are not causing the pre amp to fail or the power amp to fail
if its the pre amp it will be cheap , if its the power amp then it won't be cheap , other small components are cheap

electech

Posted on Oct 31, 2008

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6ya6ya
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Posted on Jan 02, 2017

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At low volume it is fine after you get to about 20 on the volume it starts to crack,pop and distort very bad what is making this happen


Your speakers may say 350 watts but that is the peak wattage at which they blow up and not a wattage they can sound distortion free at. Look for the RMS wattage which is probably around 40 watts. If you look at the specs on your receiver you will see it will put out a maximum of about 50 watts but the distortion on the receiver is above 1 percent at anything over 22 watts. That means they are going to start distorting at around half volume. The other thing you might check for is a impedance mismatch between the speakers and the receiver. Is the receiver set up for an impedence output of 8 ohms but your speakers are 4 ohms impedance.

Aug 23, 2015 | Kenwood KDC248U CD Car Stereo Receiver...

1 Answer

I have a yamaha "htr-5630"


NEVER USE MAXIMUM VOLUME FOR TROUBLESHOOTING. The errant switch or control that you eventually find and flip will suddenly release the amp's full power and you'll destroy your speakers. If a signal isn't audible at 1/2 volume, for all intents and purposes it's not there.

Look for a misplaced Mute or Tape Monitor control or Multichannel Analog Input selected.

There is a good chance that a common control may have developed a high-resistance or 'dead' spot through idleness and is causing your symptom. Turn the POWER OFF and operate every control throughout its range a number of times, especially rarely-used ones like Tape Monitors and the Mute control.


Turn the volume to something reasonable and see if that helped.

Mar 07, 2011 | Yamaha 5.1-Ch. Surround Sound Home Theater...

1 Answer

14 speakers hooked up to home theater reciever,shuts off .5 vol


Hi,

Try less speakers.
The impedance will be to low for this amp.

Regards,
Gerard

May 10, 2010 | Yamaha P2500S Amplifier

1 Answer

Suddenly, I can only hear the sound faintly, even though it's turned up full volume on my Yamaha HTR 5560. What happened? I've played around everywhere with the converter now. Restore defaults anywhere?...


Have you checked the MUTE function?

NEVER turn the volume up more than half-way for any sound problem. Otherwise, if you suddenly find the switch that's out of position you could blow your speakers.

What converter?

What channels, what source(s)?

Feb 27, 2010 | Yamaha HTR-5560 Receiver

1 Answer

Very low sound out of left front speaker, other speakers work fine


Have you tried another speaker? If your left front speaker is in the door as in most cars, it gets banged around a lot. The driver's door gets the most use. This sometimes results in mechanical problems with the speaker, and can cause low sound or distortion. Take the speaker cover off (it may be necessary to remove the door panel in a factory installation), disconnect the speaker and hook another in its place. If the volume is back to normal you know it's the speaker. If not, check the radio and speaker wiring. If the radio itself is at fault because the amplifier is bad, it can be repaired at a service shop. The repair charges might be close to replacement cost these days, so you might consider a new radio if the estimate is high.

Apr 27, 2009 | Sony XR-M510 Cassette Player

1 Answer

Dell GX280 Dextop: Very Low volume on Headphones


Are these USB headphones? If so, you must install them first and let the Device Manager confirm they are properly installed. Next, go to sound properties in control panel, select the headphones, and crank the volume within Windows. Finally, crank the volume controls on the headphones themselves. If they are not USB headphones, then the same sound jacks that allow speakers to be connected should allow the headphones to work.

Mar 21, 2009 | Dell OptiPlex GX280 PC Desktop

2 Answers

Want to connect my RCA sub to my yamaha htr-5940 reciever


Subwoofer needs to be enabled through menu on Yamaha. LINE OUT might be turned off or Subwoofer volume set to low or off... (-db level) kinda thing...speaker wires are usually always live etc...

Feb 03, 2009 | Yamaha HTR-5940 Receiver

2 Answers

Just bought a Philips home theatre system HTS3544 low sound?


You may also need to change the speaker set up. Go to DISC setting (one of the top selections on the remote) make sure you have no Disc in the DVD player. When in this mode press setup on the remote. On this menu you will have a option to adjust the speaker volume.

I had to increase my speaker volumes to get better sound. This setting is not accessible if you try to do the set up in other than DISC setting. Be sure to check the SURROUND setting. The SURROUND button on the remote will toggle between stereo and surround as stated in a previous post.

ST

Jan 23, 2009 | Philips HTS3544/37 Theater System

1 Answer

Front bose speakers and bass module stopped puttimg put sound


If you're saying you hooked the Bose speakers directly to the Yamaha's amp instead of the prescribed way through their own bass module - they're cooked.

Dec 23, 2008 | Bose Lifestyle 12 System

1 Answer

Onkyo 9555 protection circuit


Make shure your speaker wiring is solid hookup to amp and spekers (NO CROSSED WIRING). Also make shure speakers are not wired in parallel or the speaker impeadance will be to low and amp will kick out.Turn speakers off then hook up headphones and crank up volume then see if amp kicks out.If it does you have an internal overload and needs serviced. If it playes ok then you must have speaker problems or wiring.
GOOD LUCK
BIGREDl

Mar 26, 2008 | Audio Players & Recorders

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